I mean, people who can afford basic frames pay more for nicer ones. Quite poor people, if they get the chance, will probably pay for very-cheap real glasses ev

I mean, people who can afford basic frames pay more for nicer ones. Quite poor people, if they get the chance, will probably pay for very-cheap real glasses even if there are even-cheaper silicone ones available. For people with no other choices, I can see the silicone ones being useful! But "hey, take these glasses we made for poor people" is not a great sales pitch.